[c-nsp] Q-in-Q termination on 6500/7600

[Marcus.Gerdon]

Hi @all,

I'm looking for information regarding termination of Q-in-Q on 6500 and/or 7600 boxes. We only need plain termination on subinterfaces with IP (somewhere on Cisco called 'IPoQinQ') configured on; no EoMPLS, PPPoE or alike.

As usual Cisco's really annoying as no useful clear information is to be found, and as usual Feature Navigator seems to be missing working configurations (i.e. told me no Q-in-Q on 7200...).

All I could find out rather trustworthy is:

- ES20 and SIP for Local Vlan Significance
- ES20 supports Q-in-Q termination, a lot of tag rewrite functions etc.
- 12.2SR supports Q-in-Q termination (working on 7200)

I only need IP on a subinterface and have no need for all that fancy stuff the ES20 provide (and has to be payed for).

So the question is:

Can someone definitely confirm or reject due to tests or production setup whether Q-in-Q termination on a normal 67xx module (DFC installed) can be configured (encaps dot1q * second *) and by using which IOS ?

6500's running SXI and 7600's running SRx are the ones to look at I think as running SXF presumably won't work at all.

thanks,

Marcus

> -----Ursprüngliche Nachricht-----
> Von: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] Im Auftrag von vince anton
> Gesendet: Dienstag, 10. Februar 2009 14:06
> An: cisco-nsp
> Betreff: [c-nsp] changes in 7600 with DFC3BXL
> 
> hey all,
> 
> Quick question for you, hope you can help me.
> 
> Im working on installing the DFCs in existing 67xx cards in our 7600s:
> 
> 7606 w/SUP720-3BXL
> 2 x 6748-GE-TX
> 1 x 6704
> 
> Im aware there are some differences in how the box reacts 
> when a DFC is
> installed (the PFC will no longer need to make all the 
> decisions, etc...).
> In particular this seems to change the beahviour for qos 
> policers as well as
> L2 etherchannels.  Im using both of these, but I cant seem to find any
> definite documentation on CCO explaining the exact changes 
> and perhaps any
> recommendations.  Of course I need to know how the box will 
> behave in order
> to plan for this as part of the DFC upgrade, and so far all I 
> found was an
> FAQ at
> http://www.cisco.com/en/US/products/hw/switches/ps708/products
> _qanda_item09186a00809a7673.shtmlwhich
> doesn't give so much detail, and a few items in the archives of the
> list which touched the surface but didnt dig deep.
> 
> would appreciate if anyone can share any detailed info as to 
> how qos and
> etherchannel behaviour changes in PFC vs DFCX3BXL
> 
> thanks,
> 
> anton
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